Thomas & Betts FR743 Fusible Trolley Box Cabinet

The Thomas & Betts FR743 Fusible Trolley Box delivers a 20 A fusible disconnect for mobile conductor bar systems in industrial electrification, designed for use with overhead cranes, hoists, monorails, and conveyors that require safe power collection and disconnection. Rated up to 600 VAC / 250 VDC, the FR743 uses an enclosed fusible design inside an industrial protective housing and mounts to a conductor bar trolley assembly for safe power collection and overcurrent protection in moving equipment. Manufactured by ABB Installation Products (Thomas & Betts), this unit is intended for indoor material handling applications and is compatible with common replacements FR742, FR744, and FR745; maintenance electricians, OEM manufacturers, and system integrators rely on it for equipment installation, system expansion, and ongoing power distribution across mobile equipment.